Retaining device.



E. C. GUNDBLAGH.

RETAINING DEVICE.

APPLIGATION'FILED AUG. 18, 1913.

' 1,1 14,469. Patented 0st. 20, 1.914.

WITNESSES 31 y mw nxmg? h et 65 wmfefwwwt? m Z. j. 1% M M By UNITEDSTATES PATENT oFFIcn EMIL C. GUN'DELA'CH, OF NEW ROCHELLE, NEW YORK,ASSIGNOR OF ONE-HALF TO" FRANK G. BIKER, OF MOUNT VERNON. NEW YORK;

RETAIN ING DEVICE. I

To (ZZZ 'whomit may concern I Be it known that I EMIL C. GUNDEL-ACH, acitizen of the United States, and a resident of New Rochelle, in thecountyof lVestchester and State of New York, have invented a new andImproved Retaining Device, of which the following is a full, clear, andexact description.

The invention relates to slip on couplings, such as are used forconnecting the flexible discharge pipe of an air pump with the inletvalve of an inflatable vehicle tire, or other containingre'ceptacle,either air, gas

The object of the invention is to provide a new and improved retainingdevice, arranged to securely hold the slip on coupling in position onthe valve stem wh'ile pumping up the tire, and to allow theuser toconveniently and quickly place the retaining device in position on thevalve stem or remove it therefrom simultaneously with the slip oncoupling. i For the purpose mentioned use is made of a pair of springjaws supported from the coupling and extending in front thereof toengage the stem of the inlet valve at the time the coupling is slippedonto the valve stem. p

A pract al embodiment of the invention is represeIi-ed'in theaccompanying drawings forming a part of this specification in whichsimilar characters of reference indicate corresponding parts in bothviews.

Figure 1 is a sectional side elevation of the retaining device inposition on the coupling; and Fig. 2 is a plan view of the same.

The slip on coupling for connecting the flexible discharge pipe Act anair pump with the stem Bof'an inlet valve for an inflatable vehicle theis of the usual con struction and consists of the cup C provided at oneend with a nipple C engaging the tube A and provided at the other endwith an annular flange (l in which is held a rubber washer D by the useof a screw cap E screwing in the flange C the said washer -D beingadapted to engage the reduced end B of. the valve stem B, as indicatedin Fig. 1.

The retaining device consists of two parts, of which one is in the formof a clamping band F encircling the flange C,

and the other part is-in the form of a. pair Specification of LettersPatent.

essentially of overlapping apertured jaws G, G adapted to engage thevalve stem B a distance from the reduced end 13 thereof, as plainlyindicated in Fig. l. The clamping band F 13 provided with the usual lugsF connected with each other by a screw F? to securely clamp the band Fin position on the flange C". The band F is provided withinwardlyextending top and bottom flanges F F to securely hold theclamping band F against" I Patented Oct. 20, 1914. Application filedAugust 18, 1913. Serial No. 785,231. I

Jaws G, G extend in opposite directions are preferably made ofspring'steel, and

the jaws G, G-- are provided with apertures i G for the passage of thevalve stem B.

:lli'e apertures G are normally out of reg .ister with each other andcan only be moved in register by pressing the side arms G G toward eachother, as indicated in, dotted lines in Fig. l, to permit of engagingthe apertures G G with the valve stem B. When the operator releases theside arms G G the jaws G and G move outward in the opposite direction sothat the outer walls of the apertures G, G clampingly enga e theopposite sides of the stem B to secure y hold the slip on coupling inposition on the reduced end B of the valve stem B. The

base G is provided with an opening G arranged centrally relative to theslip on coupling so as to provide a passage for the reduced end B of thevalve stem B when placing the slip on coupling and the retaining devicein position-on t e valve stem B.

The jaw G is provided with guide lugs G engaging the other jaw G to holdthe jaws against lateral movement one relatively to the other or toallow the a-ws to slide one over the other 'in opening or closing thejaws as above mentioned. The slots F", F are arranged in the clampingband F immediately below thetop flange F so that the base G extendsunder the flange F and ovcriies the screw cap E used for holding thewasher in place. By the arrange:

' by the arrangement described the jaws G,

G, when pressed inward, can be readily en gaged with the stem B, and atthe same time the slip on coupling is coupled in position on the reducedendBof the' stem 3, and when the jaws are released by the operator theyfirmly engage the stem B so that the slip on coupling is not liable toslip oil duringthe time o pumping up the vehicle tire.

The retaining device shown and described is very simple and durable inconstruction and can be cheaply manufactured and readily applied to slipon couplings as now generally constructed.

Having thus described my invention, I

claim as new and desire to secure by Letters Patent: i

1. A retaining deviceforsli'p on couplings f0r inlet valves ofinflatable tires, comprisingfa band having lugs connected with each Iother by a bolt to permit it to beclamped in position, said band havingoppositely ar- "ranged slots, and apertured spring jaws ex tending outthrough the slots of the band, said jaws overlapping one another, andone of the said jaws being provided at each side edge with a lugengaging the other jaw.

2. A retaining device for slip on couplings for inlet valves ofinflatable tires, comprising a clamping band adapted to be secured tothe coupling, and spring jaws, said jaws" extending from opposite sidesof the band and having upwardly 'extendingarms termil n nating ll'linwardly extending and'ovcrlap-' ping apertured ends, one of the jawsbeing 40 provided at each side edge with a lug engaging its other jaw. aA retaining device for slip on couplings for inlet valves of inflatablevehicle tires,- comprislng a clamping band encircling the. 4:, couplingand provided with top and bottom clamping band.

fianges'engaging the coupling to hold the band against lengthwisemovementpn the a coupling, and apertured jaws overlapping one the otherand extending in opposite directions, the ends of the jaws terminatingin side arms connected with each other by an .apertured base member heldin the said 4. A retaining device for slip on couplings for inlet valvesof inflatable vehicle tires, comprising a clamping band encircling thecoupling and provided with top and bottom flanges engaging the couplingto hold the band. against lengthwise movement on.the coupling,'andapertured jaws overlapping one the other and extending inopposite'directions, the ends of the jaws terminating in side armsconnected with each other by an apertured base member, the said clampingband being provided with slots for the passage of the said base member,the

slots being adjacent the said top flange and the aperture of the saidbase member being central on the coupling.

5. A retaining device for slip on couplings for inlet valves ofinflatable vehicle tires, comprising a clamping'band encircling thecoupling and provided with top and;bottom flanges engaging the couplingto hold the hand against lengthwise movement on the coupling, andapertured jaws overlapping one the other and extending in oppositedirections, the ends of the jawsterminating in side arms connected witheach other by an t 1pertured base member held in the said 0 amping band,one of the said jaws having guide lugs slidingly engaging the other jaw.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

EMIL O. GUNDELAOH.

v Witnesses G190. L. Bnnnnn, PHILIP D. ROLLHAUS.

